Electric hose-signal system.



No. [593;092. I Patented Feb.'ll, I902. G. G. WEITZ.

ELECTBIOHOSE'SIGNAL-SYSTEM.

(Application filed July 19, 1901.)

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N0. 693,D92.- I .Patent'ed Feb; ll, I902.

G. G. WEITZ.

ELECTFHG HOSE SIGNAL SYSTEM, (Application filed July 19, 190i.) xmunqel.) 3 Sheath-SM a.

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. UNITED STATES- PATENT OFFICE.

GEORGE G. WEITZ, OF MEDFORD, MASSACHUSETTS, ASSIGNOR TO' HIMSELF, FRANKLIN K. YOUNG, AND MICHAEL P. OURRAN,TRUSTEES, OF BOSTON, MASSACHUSETTS.

ELECTRIC HOSE-SIGNAL SYSTEM.

srnclnrcarrou forming part of Letters .Eatent No. 693,092, dated February 1 1, 1902.

Application manl 19, 1901. Serial No. 68,935. (No model.

To all whom it may concern.- i the shell 2 is formed with an external thread Beit known thatI, GEORGE G. WEITZ, acitito receive the swivel on the end of the hosezen of the United States, and a resident of coupling 0. Included in the electric circuit Medford, in th'ee'ounty of Middlesex and State is a line running from shell 2 to the battery 5 of Massachusetts, have invented certain new 4 and aline fromsaid battery around through and useful Improvements in Electric Hosethe insulating-joint 3 and shell 2 to an insu- Signal Systems, of which the following is a lated contact-ring 5 in the end of shell 2. Inspecification. i I 'cluded'in the line is also a bell or other elec- This invention relates to an electrichosetric signal 6. i

to signaling system; and has for its object to in- When the hose is connected with the coupclude in the circuit the part of the engineling B, the contact-ring 5 and shell 2, respeccoupling with which the terminals are contively,makecontactwithlinesleadingthrough nected without including the engine in said the hoseto the nozzle, where acircuit-closer of circuit. v any suitable kind is located,by means of which :5 The invention will now be fully described the hoseman may give the signal. There are by referencelto theaccompanying drawings, well-known methods by which electric conand the novel features thereof will be parnection is made alongithe hoseto the circuitticularly pointed outin the claims at the end closer, and as these connections form no part of the specification. e ofthe present inventionillustration is deemed 2'0 In thedrawings, Figure 1 is a plan of a unnecessary. couplingembodying'lthis invention. Fig. 2 The coupling B will now be particularly deis a longitudinal central section of Fig. 1 and scribed. The form of construction by which illustrating also in diagram a loop of the cirthe shells are united to the insulating ringcuit including the battery and signal and a joint is adapted to resist great longitudinal 2 5 portion of the engine and of the hose-coupstrain and also great torsional strain, which ling. Fig. 3 i's'an'in'side end View of the shell tends to twist the coupling when the hose- L which connectswith the engine. Fig.4=is an coupling is screwed on. The shell 1, which inside end View of the shell which connects engages with the engine,is formed with a with thehose-coupling. Fig. 5is an endview number of endwise recesses 7 in the inner 30 of the insulating-joint looking from the left end and with a dovetail groove 8, connecting of Fig. 2. Fig.6 is an end View of the insuthese recesses. Shell 2, which engages with lating-joint looking from the right of Fig. 2. the hose, is also formedwith endwise recesses Fig. 7 is across-section on line 7 7 of Fig. 5. 9 and a dovetail groove 10, but the recesses Fig. 8 is a cross-section on line 8 8 of Fig. 6. in the two shells are arranged so that they.

5 Referring now to the drawihgs, especially do not come opposite each other. The joint to Fig. 2, A represents a fire-engine, B the 3, which connects the two shells, consists of coupling connected with the engine, and O a ring of vulcanized rubber or other insulatthe coupling on the hose which connects it ing "material having dovetail wings 11 12, g( with the coupling 13. The engine A and the which enter the dovetail grooves 8 10 in the 40 hose-couplingO are shown only in diagram, shells, and having bosses 13 14:,which enter as the particular construction of those memthe recesses 7 8 in the shells. The dovetail bers forms no'p'art of the present invention. form of the wings and grooves resists the The couplingB comprises, essentially, two tutendency of endwise strain to pull the shells 5 bular shells 1 2, unitedby an insulating-ring 3, apart, andthe bosses 13 14, fillingthe recesses 5 as will be more particularly explained herein- 7 8, resist the tendency to rotary action of after. The'shellslandZ are preferablymade either shell upon the insulating-joint. The of brass;buta y suitab le material maybeemouter end of shell 2 is formed with an enployed, itbe'ing'essential'that the shell 2 be larged interior diameter to receive an insua conductor of electricity, while shell 1 is not latingring 15, which abuts up against the 50 essentia'llya conductor. Preferably the shell shoulder 16 inside the shell and extends out 1 is formed-with an internal thread by which to the end of the shell. The outer portion of the coupling is secured to the engine A, and insulating-ring 15 is formed with an enlarged .interior diameter to receive a contact-ring 5,

which extends part way inward of the length of insulatingring 15 and abuts against shoulder 18, so that when the parts are assembled theinside surface of the coupling will be smooth, with flush joints. The contact-ring is formed with a flange 19, which laps onto the end of insulating-ring 15, but without extending entirely over it, as the ring 5 must not contact with shell 2. Connected with the flange 19 of the contact-ring 5 is a wire 20, which leads backward through a passage in the insulating-ring 15, shell 2, and insulating-joint 3 into an insulated cup 21, preferably of rubber, held in place by a metal cup 22, screwed into the side of the coupling. The wire should be covered or otherwise insulated in its passage. The line leads out of the cup 21 to the signal 6, whose wire leads to the battery 4. The wire 25, which leads out of the cup 21 t0 the signal, may be continuous with the wire 20; but preferably they are two different wires, each formed into a coil at the connecting ends, the coils resting in a recess in the top of the cup 21 and being held in contact with each other by pressure of a rubber washer 24, which is applied by means of screw-cap 23. The wire 25 as it leaves the cup 21 is preferably sup ported in a metal tube 26 until it is carried past the coupling. Wire 27, whichleads from the ground-pole of the battery, is connected with the ground-post 28, screwedinto the side of shell 2, making electrical contact therewith. This wire is preferably supported at the side of the coupling in a tube 29.

What I claim is- 1. In an electric hose-signal system, acoupling for connecting the hose to the engine comprising two tubular shells and a joint of insulating material which unites said shells and insulates them from each other, one of the said shells being adapted for connection with an engine and the other shell being adapted for connection with the hose, substantially as described.

2. In an electric hose-signal system, a coupling for connecting the hose to the engine comprising two tubular shells and a joint of insulating material which unites said shells and insulates them from each other, one of the said shells being adapted for connection with an engine, the other shell being adapted for connection with the hose, a flanged insulating-ring in the end of said second shell and a contact-ring which extends part way of the length of said insulating-ring and lying flush with the interior of the coupling and having a flange on the outer end which partially laps over the end of said insulatingring, substantially as described.

3. In an electric hose-signal system, a coupling for connecting the hose to the engine comprising two tubular shells and an insulating-joint which unites the two shells and insulates them from each other, one of said two shells being adapted for connection with an engine, and the other being adapted for connection with the hose, a contact-ring in the mouth of said second shell and an insulating-ring between said contact ring and said shell, a Wire leading from said contactring by an insulated passage through said second shell and through said insulatingjoint to an electric signal, and another wire electrically connected with said second shell and leading therefrom through a battery to said signal, substantially as described.

4. In an electric hose-signal system, a coupling for connecting the hose to the engine comprising two tubular shells, an insulating-joint which unites the two shells, each of said shells having formed in their inner ends a dovetail groove and recesses in said grooves, said insulating-joint being in form of a ring with dovetail wings on both sides which fit in said grooves and having also bosses which fit in said recesses, substantially as described.

5. In an electric hose-signal system, a coupling for connecting the hose to the engine, comprising two tubular shells, an insulatingjoint which unites the two shells, each of said shells having formed in their inner ends a dovetail groove and recesses in said grooves, said insulating-joint being in form of a ring with dovetail wings which fit in said grooves and having also bosses which fit in said recesses, an insulating-ring set into the hose-- connecting end of said coupling and a contact-rin g set into said insulating-ring and insulated thereby from the shell of said coup-- ling, an insulated passage leading from said contact-ring through the shell on the hoseconnecting end of said coupling and through the said insulating-joint, an electric battery,

an electric line leading from said hose-connecting end of said coupling to said battery and an electric line leading from said con tact-ring through said insulated passage to said battery, and an electric signal in said line, substantially as described.

6. In an electric hose-signal system, a coup ling for connecting the hose to the enginecomprising two tubular shells and an insulating-joint which unites the two shells, each of said shells having formed in their inner ends a dovetail groove and recesses in said grooves,

said insulating-joint being in form of a ringv with dovetail wings which fit in said groovesand having also bosses which fit in said recesses, a contact-ring set into the hose-connecting end of said coupling and insulated from said second shell, an insulated tubular passage leading from said contact-ring through said shell and through said insulating-joint, a tubular cup set into the side of said coupling and having therein an insulating-tube connecting with said passage where it leads from the insulating-joint, an electric wire leading from said contact-ring through said psssage and into said insulating-tube, another electric wire leading out of said cup and in contact with said first wire, and an insulated pressure device by which said wires are held in contact with each other, substantially as described.

7. In an electric hose-signaling system, a

coupling for connecting the hose to thelen-- gine, terminals connected with said coupling and wires leading therefrom to the battery and signaL'and tubes connected with said coupling through which the said wires pass Witnesses:

- WILLIAM A. COPELAND,

SADIE M. LOWNSBRO. 

